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LED5000 数据表(PDF) 19 Page - STMicroelectronics

部件名 LED5000
功能描述  3 A monolithic step-down current source with dimming capability
PDF  52 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

LED5000 数据表(HTML) 19 Page - STMicroelectronics

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LED5000
Application notes - buck conversion
Doc ID 023951 Rev 1
19/51
Equation 21
The gain and phase margin bode diagrams are plotted, respectively, in
Figure 10 and
Figure 11.
Figure 10.
Module plot
Figure 11.
Phase plot
R
C
47 k
Ω
=
C
C
680 pF
=
C
C
12 pF
=
AM13494v1
0.1
1
10
100
1 .10
3
1 .10
4
1 .10
5
1 .10
6
30
17
4
9
22
35
48
61
74
87
100
External loop module
Frequency [Hz]
0.1
1
10
100
1 .10
3
1 .10
4
1 .10
5
1 .10
6
0
22.5
45
67.5
90
112.5
135
157.5
180
External loop gain phase
AM13495v1



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